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A magnet of length 0.1 m and pole streng...

A magnet of length `0.1 m` and pole strength `10^(-4)` A.m. is kept in a magnetic field of `30 Wb//m^(2)` at an angle `30^(@)`. The couple acting on it is `…xx10^(-4)Nm`.

A

`7.5 xx 10^(-4)N-m`

B

`3.0 xx 10^(-4) N-m`

C

`1.5 xx 10^(-4) N-m`

D

`6.0 xx 10^(-4) N-m`

Text Solution

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The correct Answer is:
C
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